by
Charles, Randall I.

Answer

Pythagorean Triple.

Work Step by Step

The Pythagorean Theorem states that for a right triangle, $a^{2} +b^{2} = c^{2}$. In order to figure out if these sides can be a Pythagorean Triple, we plug them into the Pythagorean Theorem:
$50^{2} + 120^{2} = 130^{2} \\\\ 16900=16900$
This is true, so it is a Pythagorean Triple.